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2019
congatec
AG
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5.8
COM Port Headers
The conga-JC370 provides four COM ports:
•
COM port 1 and 2 via an LPC to UART bridge
•
COM port 3 and 4 via the congatec Board Controller
5.8.1
COM Port 1 and 2 Connectors
The conga-JC370 provides COM port 1 on D-SUB9 connector X10 and COM port 2 on pin header X11. The ports support RS232, RS422 and
RS485 I/O voltage levels. Select the COM port protocol in the BIOS setup menu.
Table 28 X11 Pinout Description
Pin RS232
RS422
RS485
Description
1
DCD
Data Carrier Detect
2
DSR
Data Set Ready
3
RXD
RX-
DATA-
Receive Data/Receive Data +
4
RTS
TX+
DATA+
Request to Send/Transmit Data +
5
TXD
TX-
DATA-
Transmit Data/Transmit Data -
6
CTS
RX+
DATA+
Clear to Send/Receive Data -
7
DTR
Data Terminal Ready
8
RI
Ring Indicator
9
GND
Ground
Table 29 X10 Pinout Description
Pin RS232
RS422
RS485
Description
1
DCD
Data Carrier Detect
2
RXD
RX-
DATA-
Receive Data
3
TXD
TX-
DATA-
Transmit Data
4
DTR
Data Terminal Ready
5
GND
Ground
6
DSR
Data Set Ready
7
RTS
TX+
DATA+
Request to Send/Transmit Data
8
CTS
RX+
DATA+
Clear to Send/Receive Data
9
RI
Ring Indicator
X11
1
5
9
6
X10
